I downgraded to firmware 1.41.01 (from 1.62.02) and the new battery (cameron sino 3.7v 1700mAh) works fine.

This may be the only solution. To see if other firmwares affect a battery replacement the only option is to progressively upgrade to each new firmware and see what happens. However, if it aint broke dont fix it may be an appropriate addage now that I am in business.

Hello! I had exactly the same problem with a CS replacement battery and solved it by downgrading to 1.30.02: hearing that it should work even with 1.41.01 is a good thing; as soon as I would have some spare time, I would try to upgrade to 1.41.01 and see if the battery still works. Have a good day!

I downgraded to firmware 1.41.01 (from 1.62.02) and the new battery (cameron sino 3.7v 1700mAh) works fine.

This may be the only solution (if you buy a non oem battery). To see if other firmwares affect a battery replacement the only option is to progressively upgrade to each new firmware and see what happens. However, if it aint broke dont fix it may be an appropriate addage now that I am all systems go.

Yeah, I think your guys' experiences with this is pretty much confirming my thoughts here:

Quote:

Originally Posted by BobbyRS

It really isn't so much about the firmware resolving the power issue, but more so of the firmware causing a fictitious power issue. Going from a thought I had here, I believe that during the process of reloading firmware and the manipulation of the ROM by the firmware, part of the changes in the instruction set sent would be this different calculated discharge-curve algorithm (Voltage vs. Time) used to calculate the different charge levels of the battery. This is where I believe the difference lies in the various firmware versions and why they seem to all report different readings for the battery meter. Hell, one firmware (1.40.xx) even had an acknowledged charging bug that caused a similar issue.

__________________.~Light travels faster than sound, which is why some people appear to be bright until they speak~

I couldnt resist, but I upgraded to firmware 1.62.02 last night with the new bat installed and yes, you guessed it, the unit would not power up. Logic suggested that my efforts would be futile (as is resistance... a little Star Trek Borg humour there)..anyway, I just had to satisfy my curiosity. That is how we learn I guess. I only have firmware 1.41.01 and 1.62.02 so I cant do a progressive test, may be worth while if you see some benefit in having more recent firmware, otherwise why bother.

If you do test other firmware remember, if you have probs after each firware upgrade, you will have to insert your old battery (to get the unit going again), downgrade to 1.41.01 and then reinstall the new battery and then try the next firmware update.

I couldnt resist, but I upgraded to firmware 1.62.02 last night with the new bat installed and yes, you guessed it, the unit would not power up. Logic suggested that my efforts would be futile (as is resistance... a little Star Trek Borg humour there)..anyway, I just had to satisfy my curiosity. That is how we learn I guess. I only have firmware 1.41.01 and 1.62.02 so I cant do a progressive test, may be worth while if you see some benefit in having more recent firmware, otherwise why bother.

Thanks for the confirming Anubis04.

Quote:

Originally Posted by anubis04

If you do test other firmware remember, if you have probs after each firware upgrade, you will have to insert your old battery (to get the unit going again), downgrade to 1.41.01 and then reinstall the new battery and then try the next firmware update.

...and thanks for that bit of information.

__________________.~Light travels faster than sound, which is why some people appear to be bright until they speak~

There are all the fw versions between v1.41.01 and v1.62.02 (be careful because not all the fw shown in that page are for the ZVM 30Gb: some of them are for the Zen Vision or the ZVM 60Gb). Have a good day!

There are all the fw versions between v1.41.01 and v1.62.02 (be careful because not all the fw shown in that page are for the ZVM 30Gb: some of them are for the Zen Vision or the ZVM 60Gb). Have a good day!

the zvm will work fine when docked but will not work on its on power. if i pull it off the dock it will turn off. if i put back on the dock it goes into rebuild mode and continue working. i plug into usb the blue light comes on but that it. it was droped before this happen.
thanks for any help! ! !

I think that it's a battery issue (perhaps the battery connector is disconnected from the motherboard due to the fall) though, reading that it rebuilds every time and that you've dropped it, it could be also an hard drive issue (but I tend to exclude it according to the other symptoms). Do you hear a strange clicking sound coming from the hard drive?

no strange click that i can tell. if i had a way to get the songs back on computer (songs were accidently erased on computer) i would send off for repair. the zvm will not turn on by the usb in order for me to drag songs back to computer. only the blue light comes on when hooked up to the usb.
how can i go inside and chk the battery disconnect and will i loose my songs by doing so?
thanks for ur reply! ! !

I updated to 1.60.01 and the battery was not recognised just like with 1.62.02, so I will not test 1.61.01 as I think it is safe to assume that the only firmware which will work is 1.41.01. Is there anyway to modify the firmware to recognise the higher mAh battery?

NOTE: The Cameron Sino bat I use is the 1750 mah version but be carful as it is slighly thicker that the first replacement battery I bought and it is a tight fit. The first replacement bat which I should have kept was exactly the same dimensions as the original OEM. I really wish Creative still made the zvm (or release 120gig version hehe). dont get me wrong, the zvm has a few failings, but that model suited me perfectly.

I updated to 1.60.01 and the battery was not recognised just like with 1.62.02, so I will not test 1.61.01 as I think it is safe to assume that the only firmware which will work is 1.41.01. Is there anyway to modify the firmware to recognise the higher mAh battery?

Haven't you tried the fw v1.51.01? It's between 1.41.01 and 1.60.01 and it could work... BTW, I've talked with some developers on the Rockbox forums and they said that it isn't impossible but very hard to do so I guess that we have to give up! If you have some spare time, try the 1.51.01 fw and let us know. Have a good day!